<template>
  <div class="HelloWorld">
    <div>
      <h1>{{ msg }}</h1>
    </div>
    <div class="counter">
      Counter:{{counter}}
    </div>
    
  </div>
</template>

<script>
export default {
  name: 'HelloWorld',
 
    data(){
      return{
       counter:0
      }
    },
    mounted(){
      setInterval(() => {
        this.counter++;
      }, 1000);
    }
  }
 
  

</script>

 <!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
h1, h2 {
  font-weight: normal;
}
ul {
  list-style-type: none;
  padding: 0;
}
li {
  display: inline-block;
  margin: 0 10px;
}
a {
  color: #42b983;
}
</style>
